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64 Cards in this Set
- Front
- Back
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Inferential Statistics |
Tools used to make generalized inferences about a population from a sample.
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t-test |
comparison of the means of 2 populations |
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Matched Pairs t-test |
Used when 2 measurements are taken from each ps. (Usually used in before and after treatment conditions) |
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Independent t-test |
Used when two different samples are collected and compared
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F (ANOVA) |
(The P value is found from this) |
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Post Hoc comparison |
Tells you where sign difference of the means from an ANOVA test was (assuming critical F value was met) |
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Factorials |
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Mixed |
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Interactions |
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Main Effects |
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F Tables |
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SS |
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df |
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MS |
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F |
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p |
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Alpha levels |
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Statistical Significance |
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Type I Errors |
Rejecting Null when it shouldn't be Rejected False Positive |
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Type II Errors |
Failing to reject H0 when it should be rejected (accepting the null)
Fals Negative
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HeteroGeneity |
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Homgeneity of variance |
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Levene's Test |
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Normal Distribution |
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Degrees of freedom |
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t-obtained |
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t-critical values |
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Laws of Parsimony |
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Ceiling Effect |
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Floor Effect |
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Converging Series |
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Single Blind |
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Double Blind |
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Demand Characteristics |
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Non Experiments designs |
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Quasi Experimental designs |
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APA Format |
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Abstract |
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Introduction |
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Methods |
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Results |
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Discussion |
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References |
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Quasi Time series |
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Pre-Posttest |
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Non experimental Posttest |
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non experimental pre-posttest |
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DV |
Variable being measured |
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IV |
Manipulated Variable |
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Nominal Data (Categorical) |
Name or Label (Men, Women) |
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Ordinal (rank order) |
Interval not know (Gold, Silver, Bronze, 1st 2nd 3rd) |
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Interval |
interval btw 60-70 s same as 70-80. NO ABSOLUTE ZERO [Parametric] |
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Ratio |
Interval w/absolute zero (Best to measure stastical significance) |
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Chi Square |
Oberserved Frequency is or isnt equal to the Expected occurence (100 coint tosses E- 50H:50T, O- 60H:40T) |
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Spearman |
Ordinal Shows Correlation |
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Pearson r |
interval and ratio data (-1 to 1) |
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Reliabilty |
Consistent results |
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Valid |
Accuracy in measure. Measure what it's supposed to measure |
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Likert Scale |
Scale of agreement (1-7 usually) |
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Descriptive Methods |
1. Observational 2. Case Study 3. Survey |
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Observational |
2 types: 1. Naturalistic 2. Laboratory (+)Flexibility in where to study (-) Little Control |
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Case Study |
In depth of 1+ individuals (+) Depth of information gathered (-) Lack of generalizabalility (-)Highly subj. |
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Survey |
(+) Large groups Easy to administer (-) Wording of questions Dependent on Ps The sample truly representative |
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Research process |
Identify a prob; Review Lit, generate hyp, Design/conduct exp, analyze, communicate results |
